Since I finally got to the boat to see what I have I thought I would start a new thread, sorry for having multiples.

So I have a 20 month old daughter so I wont be getting to blast the stereo all this time so I am looking to upgrade with out breaking the bank. The reason being is one of my tower speakers is blown so I have to replace it anyway so I might as well upgrade it while I am at it if I can.

Here is what I have and am looking for suggestions(All of this was on the boat when I bought it last year):

Cabins-
6- Kicker KM613
Amp- Crunch PZ1800.4
Sub- Kicker KM 10

Tower-
2- Kicker KM620.2 In Roswell Cans(1 is blown)
Amp- Kicker ZX250.2

Like I posted in my previous thread I was thinking of replacing the cabins with Polk PD651's if that would be better than the 613's.
I can still get the 620.2's on Ebay if that is the best option for the tower?

Thanks for all the help!